Clean Water Act discharge permit · NPDES AZC110990
MESA SIGNAL BUTTE WATER TREATMENT PLANT, Mesa, AZ: NPDES AZC110990 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MESA SIGNAL BUTTE WATER TREATMENT PLANT, held by McCarthy Building Companies, Inc., holds NPDES permit AZC110990, which discharges to Siphon Draw | Superstition Mountains Wwtp Outf. EPA’s file records it issued August 29, 2025 and expiring August 28, 2030. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for MESA SIGNAL BUTTE WATER TREATMENT PLANT: its NPDES ID, its permit type and status, its dates, its address in Mesa, Arizona, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZC110990.
Identity
| Facility as filed | MESA SIGNAL BUTTE WATER TREATMENT PLANT |
|---|---|
| Permittee as filed | McCarthy Building Companies, Inc. |
| NPDES ID | AZC110990 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 29, 2025 |
| Expiration date | August 28, 2030 |
| Issuing agency | ADEQ |
| Address | Mesa, AZ 85212 |
| Receiving water | Siphon Draw | SUPERSTITION MOUNTAINS WWTP OUTF |
| Subwatershed | Siphon Draw (HUC 150501000803) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES AZC110990.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES AZC110990.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, AZC110990.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID AZC110990 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.